Finding the Third Proportional to 2,137,115 and 4,361,436

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137,115 : 4,361,436 = 4,361,436 : x
2. Step 2: Convert to fraction form
   2,137,115/4,361,436 = 4,361,436/x
3. Step 3: Cross multiply
   2,137,115x = 4,361,436 × 4,361,436
4. Step 4: Simplify right side
   2,137,115x = 19,022,123,982,096
5. Step 5: Solve for x
   x = 19,022,123,982,096/2,137,115
6. Step 6: Final answer
   x = 8,900,842.48